users: drop email column.

app/views/emails/edit.html.erb

@@ -8,7 +8,7 @@
 
     <%= edit_form_for(@user, url: user_email_path(@user)) do |f| %>
       <%= f.input :password %>
-      <%= f.input :email %>
+      <%= f.input :email, as: :email, input_html: { value: "" } %>
       <%= f.submit "Save" %>
     <% end %>
   </div>

app/views/users/new.html.erb

@@ -15,7 +15,7 @@
     <div id="p3">
       <%= edit_form_for(@user, html: { id: "signup-form" }) do |f| %>
         <%= f.input :name, as: :string %>
-        <%= f.input :email, label: "Email", required: false, as: :email, hint: "Optional" %>
+        <%= f.input :email, label: "Email", required: false, as: :email, input_html: { value: "" }, hint: "Optional" %>
         <%= f.input :password %>
         <%= f.input :password_confirmation %>
 

db/migrate/20200325074859_drop_emails_from_users.rb

@@ -0,0 +1,5 @@
+class DropEmailsFromUsers < ActiveRecord::Migration[6.0]
+  def change
+    remove_column :users, :email, :string
+  end
+end

db/structure.sql

@@ -2201,7 +2201,6 @@ CREATE TABLE public.users (
     id integer NOT NULL,
     name character varying NOT NULL,
     level integer DEFAULT 20 NOT NULL,
-    email character varying,
     inviter_id integer,
     created_at timestamp without time zone NOT NULL,
     last_logged_in_at timestamp without time zone DEFAULT now(),
@@ -6989,13 +6988,6 @@ CREATE INDEX index_user_name_change_requests_on_user_id ON public.user_name_chan
 CREATE INDEX index_users_on_created_at ON public.users USING btree (created_at);
 
 
---
--- Name: index_users_on_email; Type: INDEX; Schema: public; Owner: -
---
-
-CREATE INDEX index_users_on_email ON public.users USING btree (email) WHERE (email IS NOT NULL);
-
-
 --
 -- Name: index_users_on_inviter_id; Type: INDEX; Schema: public; Owner: -
 --
@@ -7371,6 +7363,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200309035334'),
 ('20200309043653'),
 ('20200318224633'),
-('20200325073456');
+('20200325073456'),
+('20200325074859');